Orbital Ingredients and Persistent Dirac Surface State for the Topological Band Structure in FeTe 0.55 Se 0.45

Li, Y. -F.; Chen, S. -D.; García-Díez, M.; Iraola, M. I.; Pfau, H.; Zhu, Y. -L.; Mao, Z. -Q.; Chen, T.; Yi, M.; Dai, P. -C.; Sobota, J. A.; Hashimoto, M.; Vergniory, M. G.; Lu, D. -H.; Shen, Z. -X.

doi:10.1103/PhysRevX.14.021043

Orbital Ingredients and Persistent Dirac Surface State for the Topological Band Structure in ${FeTe}_{0.55} {Se}_{0.45}$

Journal Article · Tue Jun 11 00:00:00 EDT 2024 · Physical Review. X

DOI:https://doi.org/10.1103/PhysRevX.14.021043· OSTI ID:2474400

Li, Y. -F.; ; ; Iraola, M. I.; ; Zhu, Y. -L.; Mao, Z. -Q.; Chen, T.; Yi, M.; Dai, P. -C.; ; Hashimoto, M.; Vergniory, M. G.; Lu, D. -H.; Shen, Z. -X.

${FeTe}_{0.55} {Se}_{0.45}$ (FTS) occupies a special spot in modern condensed matter physics at the intersections of electron correlation, topology, and unconventional superconductivity. The bulk electronic structure of FTS is predicted to be topologically nontrivial due to the band inversion between the $d_{x z}$ and $p_{z}$ bands along $Γ − Z$ . However, there remain debates in both the authenticity of the Dirac surface states (DSSs) and the experimental deviations of band structure from the theoretical band inversion picture. Here we resolve these debates through a comprehensive angle-resolved photoemission spectroscopy investigation. We first observe a persistent DSS independent of $k_{z}$ . Then, by comparing FTS with FeSe, which has no band inversion along $Γ − Z$ , we identify the spectral weight fingerprint of both the presence of the $p_{z}$ band and the inversion between the $d_{x z}$ and $p_{z}$ bands. Furthermore, we propose a renormalization scheme for the band structure under the framework of a tight-binding model preserving crystal symmetry. Our results highlight the significant influence of correlation on modifying the band structure and make a strong case for the existence of topological band structure in this unconventional superconductor.

Published by the American Physical Society 2024

View Journal Article

Sponsoring Organization:: USDOE Office of Science (SC), Basic Energy Sciences (BES)

Grant/Contract Number:: SC0012311; AC02-76SF00515

OSTI ID:: 2474400

Alternate ID(s):: OSTI ID: 2350843
OSTI ID: 2397263

Journal Information:: Physical Review. X, Journal Name: Physical Review. X Journal Issue: 2 Vol. 14; ISSN PRXHAE; ISSN 2160-3308

Publisher:: American Physical SocietyCopyright Statement

Country of Publication:: United States

Language:: English

References (48)

An experimentalist's guide to the matrix element in angle resolved photoemission Moser, Simon Journal of Electron Spectroscopy and Related Phenomena, Vol. 214 https://doi.org/10.1016/j.elspec.2016.11.007	journal	January 2017
FeTe 1− x Se x monolayer films: towards the realization of high-temperature connate topological superconductivity Shi, Xun; Han, Zhi-Qing; Richard, Pierre Science Bulletin, Vol. 62, Issue 7 https://doi.org/10.1016/j.scib.2017.03.010	journal	April 2017
High-temperature superconductivity in iron pnictides and chalcogenides Si, Qimiao; Yu, Rong; Abrahams, Elihu Nature Reviews Materials, Vol. 1, Issue 4 https://doi.org/10.1038/natrevmats.2016.17	journal	March 2016
A topological Dirac insulator in a quantum spin Hall phase Hsieh, D.; Qian, D.; Wray, L. Nature, Vol. 452, Issue 7190, p. 970-974 https://doi.org/10.1038/nature06843	journal	April 2008
Interfacial mode coupling as the origin of the enhancement of Tc in FeSe films on SrTiO3 Lee, J. J.; Schmitt, F. T.; Moore, R. G. Nature, Vol. 515, Issue 7526 https://doi.org/10.1038/nature13894	journal	November 2014
Observation of universal strong orbital-dependent correlation effects in iron chalcogenides Yi, M.; Liu, Z-K; Zhang, Y. Nature Communications, Vol. 6, Issue 1 https://doi.org/10.1038/ncomms8777	journal	July 2015
Phase diagram and electronic indication of high-temperature superconductivity at 65 K in single-layer FeSe films He, Shaolong; He, Junfeng; Zhang, Wenhao Nature Materials, Vol. 12, Issue 7 https://doi.org/10.1038/nmat3648	journal	May 2013
Electronic correlations in the iron pnictides Qazilbash, M. M.; Hamlin, J. J.; Baumbach, R. E. Nature Physics, Vol. 5, Issue 9 https://doi.org/10.1038/nphys1343	journal	July 2009
What drives nematic order in iron-based superconductors? Fernandes, R. M.; Chubukov, A. V.; Schmalian, J. Nature Physics, Vol. 10, Issue 2 https://doi.org/10.1038/nphys2877	journal	January 2014
Observation of a robust zero-energy bound state in iron-based superconductor Fe(Te,Se) Yin, J-X.; Wu, Zheng; Wang, J-H. Nature Physics, Vol. 11, Issue 7 https://doi.org/10.1038/nphys3371	journal	June 2015
Discrete energy levels of Caroli-de Gennes-Matricon states in quantum limit in FeTe0.55Se0.45 Chen, Mingyang; Chen, Xiaoyu; Yang, Huan Nature Communications, Vol. 9, Issue 1 https://doi.org/10.1038/s41467-018-03404-8	journal	March 2018
A new Majorana platform in an Fe-As bilayer superconductor Liu, Wenyao; Cao, Lu; Zhu, Shiyu Nature Communications, Vol. 11, Issue 1 https://doi.org/10.1038/s41467-020-19487-1	journal	November 2020
Role of the orbital degree of freedom in iron-based superconductors Yi, Ming; Zhang, Yan; Shen, Zhi-Xun npj Quantum Materials, Vol. 2, Issue 1 https://doi.org/10.1038/s41535-017-0059-y	journal	October 2017
Computational framework chinook for angle-resolved photoemission spectroscopy Day, Ryan P.; Zwartsenberg, Berend; Elfimov, Ilya S. npj Quantum Materials, Vol. 4, Issue 1 https://doi.org/10.1038/s41535-019-0194-8	journal	November 2019
Strongly correlated superconductor with polytypic 3D Dirac points Borisenko, Sergey; Bezguba, Volodymyr; Fedorov, Alexander npj Quantum Materials, Vol. 5, Issue 1 https://doi.org/10.1038/s41535-020-00268-4	journal	September 2020
Zero-energy vortex bound state in the superconducting topological surface state of Fe(Se,Te) Machida, T.; Sun, Y.; Pyon, S. Nature Materials, Vol. 18, Issue 8 https://doi.org/10.1038/s41563-019-0397-1	journal	June 2019
Multiple topological states in iron-based superconductors Zhang, Peng; Wang, Zhijun; Wu, Xianxin Nature Physics, Vol. 15, Issue 1 https://doi.org/10.1038/s41567-018-0280-z	journal	September 2018
Atomic line defects and zero-energy end states in monolayer Fe(Te,Se) high-temperature superconductors Chen, Cheng; Jiang, Kun; Zhang, Yi Nature Physics, Vol. 16, Issue 5 https://doi.org/10.1038/s41567-020-0813-0	journal	March 2020
Symmetry-breaking orbital anisotropy observed for detwinned Ba(Fe1-xCox)2As2 above the spin density wave transition Yi, M.; Lu, D.; Chu, J. -H. Proceedings of the National Academy of Sciences, Vol. 108, Issue 17 https://doi.org/10.1073/pnas.1015572108	journal	April 2011
Fe_1+yTe_xSe1-_x: A Delicate and Tunable Majorana Material Yang, Fazhi; Phan, Giao Ngoc; Zhang, Renjie Chinese Physics Letters, Vol. 40, Issue 1 https://doi.org/10.1088/0256-307X/40/1/017401	journal	January 2023
Topological superconductors: a review Sato, Masatoshi; Ando, Yoichi Reports on Progress in Physics, Vol. 80, Issue 7 https://doi.org/10.1088/1361-6633/aa6ac7	journal	May 2017
Topological quantum states of matter in iron-based superconductors: from concept to material realization Hao, Ning; Hu, Jiangping National Science Review, Vol. 6, Issue 2 https://doi.org/10.1093/nsr/nwy142	journal	November 2018
Observation of topological transition in high- T c superconducting monolayer FeTe 1 − x Se x films on SrTiO 3 ( 001 ) Peng, X. -L.; Li, Y.; Wu, X. -X. Physical Review B, Vol. 100, Issue 15 https://doi.org/10.1103/PhysRevB.100.155134	journal	October 2019
Band inversion and topology of the bulk electronic structure in FeSe 0.45 Te 0.55 Lohani, Himanshu; Hazra, Tamaghna; Ribak, Amit Physical Review B, Vol. 101, Issue 24 https://doi.org/10.1103/PhysRevB.101.245146	journal	June 2020
Correlation-corrected band topology and topological surface states in iron-based superconductors Ma, Xiaobo; Wang, Guangwei; Liu, Rui Physical Review B, Vol. 106, Issue 11 https://doi.org/10.1103/PhysRevB.106.115114	journal	September 2022
Theory of electron nematic order in LaFeAsO Fang, Chen; Yao, Hong; Tsai, Wei-Feng Physical Review B, Vol. 77, Issue 22 https://doi.org/10.1103/PhysRevB.77.224509	journal	June 2008
Density functional study of FeS, FeSe, and FeTe: Electronic structure, magnetism, phonons, and superconductivity Subedi, Alaska; Zhang, Lijun; Singh, D. J. Physical Review B, Vol. 78, Issue 13 https://doi.org/10.1103/PhysRevB.78.134514	journal	October 2008
Charge-carrier localization induced by excess Fe in the superconductor Fe 1 + y Te 1 − x Se x Liu, T. J.; Ke, X.; Qian, B. Physical Review B, Vol. 80, Issue 17 https://doi.org/10.1103/PhysRevB.80.174509	journal	November 2009
Orbital characters of bands in the iron-based superconductor BaFe 1.85 Co 0.15 As 2 Zhang, Y.; Chen, F.; He, C. Physical Review B, Vol. 83, Issue 5 https://doi.org/10.1103/PhysRevB.83.054510	journal	February 2011
Orbital characters determined from Fermi surface intensity patterns using angle-resolved photoemission spectroscopy Wang, X. -P.; Richard, P.; Huang, Y. -B. Physical Review B, Vol. 85, Issue 21 https://doi.org/10.1103/PhysRevB.85.214518	journal	June 2012
Neutron scattering study of spin dynamics in superconducting (Tl,Rb) 2 Fe 4 Se 5 Chi, Songxue; Ye, Feng; Bao, Wei Physical Review B, Vol. 87, Issue 10 https://doi.org/10.1103/PhysRevB.87.100501	journal	March 2013
Topological nature of the FeSe 0.5 Te 0.5 superconductor Wang, Zhijun; Zhang, P.; Xu, Gang Physical Review B, Vol. 92, Issue 11 https://doi.org/10.1103/PhysRevB.92.115119	journal	September 2015
Experimental observation of incoherent-coherent crossover and orbital-dependent band renormalization in iron chalcogenide superconductors Liu, Z. K.; Yi, M.; Zhang, Y. Physical Review B, Vol. 92, Issue 23 https://doi.org/10.1103/PhysRevB.92.235138	journal	December 2015
Topological characters in Fe ( Te 1 − x Se x ) thin films Wu, Xianxin; Qin, Shengshan; Liang, Yi Physical Review B, Vol. 93, Issue 11 https://doi.org/10.1103/PhysRevB.93.115129	journal	March 2016
Effect of impurity substitution on band structure and mass renormalization of the correlated FeTe 0.5 Se 0.5 superconductor Thirupathaiah, S.; Fink, J.; Maheshwari, P. K. Physical Review B, Vol. 93, Issue 20 https://doi.org/10.1103/PhysRevB.93.205143	journal	May 2016
Distinct Fermi Surface Topology and Nodeless Superconducting Gap in a ( Tl 0.58 Rb 0.42 ) Fe 1.72 Se 2 Superconductor Mou, Daixiang; Liu, Shanyu; Jia, Xiaowen Physical Review Letters, Vol. 106, Issue 10 https://doi.org/10.1103/PhysRevLett.106.107001	journal	March 2011
Spin-Orbit Interactions and the Nematicity Observed in the Fe-Based Superconductors Johnson, P. D.; Yang, H. -B.; Rameau, J. D. Physical Review Letters, Vol. 114, Issue 16 https://doi.org/10.1103/PhysRevLett.114.167001	journal	April 2015
Topological Superconductivity on the Surface of Fe-Based Superconductors Xu, Gang; Lian, Biao; Tang, Peizhe Physical Review Letters, Vol. 117, Issue 4 https://doi.org/10.1103/PhysRevLett.117.047001	journal	July 2016
Momentum Dependence of the Nematic Order Parameter in Iron-Based Superconductors Pfau, H.; Chen, S. D.; Yi, M. Physical Review Letters, Vol. 123, Issue 6 https://doi.org/10.1103/PhysRevLett.123.066402	journal	August 2019
Orbital-Selective Mott Transition Effects and Nontrivial Topology of Iron Chalcogenide Kim, Minjae; Choi, Sangkook; Brito, Walber Hugo Physical Review Letters, Vol. 132, Issue 13 https://doi.org/10.1103/PhysRevLett.132.136504	journal	March 2024
Topological Phases in the Single-Layer FeSe Hao, Ningning; Hu, Jiangping Physical Review X, Vol. 4, Issue 3 https://doi.org/10.1103/PhysRevX.4.031053	journal	September 2014
Topological insulators and superconductors Qi, Xiao-Liang; Zhang, Shou-Cheng Reviews of Modern Physics, Vol. 83, Issue 4 https://doi.org/10.1103/RevModPhys.83.1057	journal	October 2011
Angle-resolved photoemission studies of quantum materials Sobota, Jonathan A.; He, Yu; Shen, Zhi-Xun Reviews of Modern Physics, Vol. 93, Issue 2 https://doi.org/10.1103/RevModPhys.93.025006	journal	May 2021
Imaging atomic-scale effects of high-energy ion irradiation on superconductivity and vortex pinning in Fe(Se,Te) Massee, Freek; Sprau, Peter Oliver; Wang, Yong-Lei Science Advances, Vol. 1, Issue 4 https://doi.org/10.1126/sciadv.1500033	journal	May 2015
Experimental Realization of a Three-Dimensional Topological Insulator, Bi₂Te₃ Chen, Y. L.; Analytis, J. G.; Chu, J.-H. Science, Vol. 325, Issue 5937, p. 178-181 https://doi.org/10.1126/science.1173034	journal	June 2009
Ubiquitous signatures of nematic quantum criticality in optimally doped Fe-based superconductors Kuo, H. -H.; Chu, J. -H.; Palmstrom, J. C. Science, Vol. 352, Issue 6288 https://doi.org/10.1126/science.aab0103	journal	May 2016
Observation of topological superconductivity on the surface of an iron-based superconductor Zhang, Peng; Yaji, Koichiro; Hashimoto, Takahiro Science, Vol. 360, Issue 6385 https://doi.org/10.1126/science.aan4596	journal	March 2018
Evidence for Majorana bound states in an iron-based superconductor Wang, Dongfei; Kong, Lingyuan; Fan, Peng Science, Vol. 362, Issue 6412 https://doi.org/10.1126/science.aao1797	journal	August 2018

Similar Records

Pressure-Induced Superconductivity In Polycrystalline

{La}_{3} {Ni}_{2} O_{7 - δ}

Journal Article · Wed Mar 06 23:00:00 EST 2024 · Physical Review. X · OSTI ID:2320288

Absence of

E_{2 g}

Nematic Instability and Dominant

A_{1 g}

Response in the Kagome Metal

{CsV}_{3} {Sb}_{5}

Journal Article · Mon Jul 29 00:00:00 EDT 2024 · Physical Review. X · OSTI ID:2406980

Observation of Medium-Induced Yield Enhancement and Acoplanarity Broadening of Low-

p_{T}

Jets from Measurements in

p p

and Central Pb-Pb Collisions at

\sqrt{s_{NN}} = 5.02 TeV

Journal Article · Mon Jul 08 20:00:00 EDT 2024 · Physical Review Letters · OSTI ID:2396391

Orbital Ingredients and Persistent Dirac Surface State for the Topological Band Structure in FeTe 0.55 Se 0.45

Citation Formats

References (48)

Similar Records

Related Subjects

Orbital Ingredients and Persistent Dirac Surface State for the Topological Band Structure in ${FeTe}_{0.55} {Se}_{0.45}$